3130221 has 8 divisors (see below), whose sum is σ = 4191264. Its totient is φ = 2078000.

The previous prime is 3130207. The next prime is 3130229. The reversal of 3130221 is 1220313.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3130221 - 2¹¹ = 3128173 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3130197 and 3130206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3130229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1326 + ... + 2831.

It is an arithmetic number, because the mean of its divisors is an integer number (523908).

Almost surely, 2^3130221 is an apocalyptic number.

It is an amenable number.

3130221 is a deficient number, since it is larger than the sum of its proper divisors (1061043).

3130221 is a wasteful number, since it uses less digits than its factorization.

3130221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4411.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 3130221 is about 1769.2430584857. The cubic root of 3130221 is about 146.2822618578.

Adding to 3130221 its reverse (1220313), we get a palindrome (4350534).

The spelling of 3130221 in words is "three million, one hundred thirty thousand, two hundred twenty-one".